public class Main {
    public static void main(String[] args) {
        Aac aac = new Aac();
        M4a m4a = new M4a();
        Alac alac = new Alac();

        AdapterMusic adapter = new AdapterMusic(aac, m4a, alac);

        System.out.println(adapter.playAac());
        System.out.println(adapter.playM4a());
        System.out.println(adapter.playAlac());
    }
}